Sound devices

This lesson looks at how microphones are used to convert sound waves into electrical current and how the opposite is true for loudspeakers.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the range of human hearing?

1/5

Q2.Which of the following is not a use of ultrasound?

2/5

Q3.What are the tiny bones in our ear called?

3/5

Q4.When does the human hearing range get worse?

4/5

Q5.A dolphin emits a sound wave that another dolphin hears 0.5s later. Sound travels at 1400 m/s in water. How far apart are the two dolphins?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is the range of human hearing?

1/5

Q2.Which of the following is not a use of ultrasound?

2/5

Q3.What are the tiny bones in our ear called?

3/5

Q4.When does the human hearing range get worse?

4/5

Q5.A dolphin emits a sound wave that another dolphin hears 0.5s later. Sound travels at 1400 m/s in water. How far apart are the two dolphins?

5/5

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Sound devices

This quiz will test your knowledge from today's lesson and your prior learning.

Q1.Which of the following devices converts an electrical current into sound waves?

1/5

Q2.What is created when a current flows through a wire?

2/5

Q3.Which of the following can't be found inside a microphone?

3/5

Q4.Which of the following devices converts sound waves into an electrical current?

4/5

Q5.Which part of the ear can be found between the ear canal and the ossicles?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Sound devices

This quiz will test your knowledge from today's lesson and your prior learning.

Q1.Which of the following devices converts an electrical current into sound waves?

1/5

Q2.What is created when a current flows through a wire?

2/5

Q3.Which of the following can't be found inside a microphone?

3/5

Q4.Which of the following devices converts sound waves into an electrical current?

4/5

Q5.Which part of the ear can be found between the ear canal and the ossicles?

5/5

Lesson summary: Sound devices

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Time to move!

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